Acura MDX vs Toyota Sienna

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure	Acura MDX	Toyota Sienna
Complaints on file	4,633	10,828
Model years covered	2001–2026	1996–2020
Worst model year	2017	2011
Best model year	2007	2020
Crashes reported	223	558
Fires reported	87	117
Injuries reported	154	549
Deaths reported	0	10
Most complained-about part	Transmission & Drivetrain	Body & Structure
Share of complaints involving harm	10%	11.4%

Acura MDX by year

266 242 259 243 244 121 126 62 76 63 87 101 46 248 98 522 391 284 307 355 209 58 65 151 9

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Transmission & Drivetrain 976 21.1%

Engine & Cooling 818 17.7%

Electrical System 500 10.8%

Driver Assist & Collision Avoidance 345 7.4%

Other & Unspecified 319 6.9%

Fuel & Propulsion 239 5.2%

Airbags 230 5.0%

Brakes 206 4.4%

Toyota Sienna by year

3 2 352 250 459 238 225 124 2,588 1,418 1,284 450 570 270 227 814 333 227 210 293 98 201 86 58 48

96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Body & Structure 2,801 25.9%

Airbags 886 8.2%

Doors, Latches & Locks 791 7.3%

Electrical System 708 6.5%

Other & Unspecified 616 5.7%

Brakes 590 5.4%

Transmission & Drivetrain 559 5.2%

Engine & Cooling 553 5.1%